The Munchables black screen

When I load The Munchables from USB or from Backup Disc, I get a black screen. I just followed through the current version of Mauifrog's Softmod ANY Wii Guide in an effort to fix this (Chapters 2 and 3 - I met the requirements to skip Chapter 1), but it still happens. What can I do to troubleshoot this problem and get this game working?! I'll be glad to read through any threads you care to point me to if there is more I should do myself before asking for help. Thanks in advance for any constructive input.